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November 1, 2014

Homework Help: Math: Calculus

Recent Homework Questions About Calculus

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Calculus
Suppose that two boats leave a dock at different times. One heads due north, the other due east. Find the rate at which the distance between the boats is changing when the first boat is 56 miles from the dock traveling at a speed of 35 miles per hour and the second boat is 20 ...
Tuesday, October 7, 2014 at 11:36am

AP Calculus
Using the definition of derivative find f'(x) when f(x) = (1/sqr x) + x.
Tuesday, October 7, 2014 at 9:34am

Physics
A pistol is shot upwards at an angle of 37 degrees above horizontal, with an initial velocity of 375m/s. What height does it reach? What is its horizontal range? (I pretty much know what formulas to use, but I'm not quite sure HOW to use them.. Also you should know that ...
Monday, October 6, 2014 at 11:57pm

Pre Calculus
Using Descartes' Rule of Signs how can you determine the number of positive and negative zeros (roots) a polynomial may have?
Monday, October 6, 2014 at 7:05pm

Pre Calculus
If f(x)=-4x^3 +5x^2 +8 and c=-2 is c a factor of x?(Use the Factor Theorem)
Monday, October 6, 2014 at 5:41pm

Calculus
A light is hung 15 ft above a straight horizontal path. If a man 6 ft tall is walking away from the light at the rate of 5 ft/sec, how fast is his shadow lengthening and at what rate is the tip of the man’s shadow moving?
Monday, October 6, 2014 at 10:48am

Timerate problem(calculus)
Sand is being dropped at the rate 10 metercube/min onto a conical pile. If the height of the pile is always twice the base radius, at what rate is the increasing when the pile is 8 m high?
Monday, October 6, 2014 at 10:46am

calculus
How to solve by completing the square? 1. 4(c+3)^2=1/4 2. (2p-5)^2=1/4 3. 2w^2-3w-3=0
Monday, October 6, 2014 at 12:54am

Calculus
let F(x) = f(2x) and suppose that the derivative of F(x) = x^(2). Find the derivative of f(2x).
Sunday, October 5, 2014 at 11:46pm

Calculus
So here is the question: Find and equation of the tangent line to the graph: 4)f(x)=e^(2x) passing through the point (0,0) I find derivative being f'(x) =2e^(2x) Then m = f'(0) = 2 put into point slope formula: (y-y1)=m(x-x1) y-0 = 2(x-0) which comes out to y=2x 0=2x...
Sunday, October 5, 2014 at 10:27pm

calculus
Implicit diff. y^2 + 4xy +4y^2=40 2yy'+ _______ + 8y*y=0 I am confused with the 4xy. Would you write this out to be 4x*y'+4y OR 4x*4y' + 4y*4x'? Please help
Sunday, October 5, 2014 at 3:46pm

Calculus
Integrate sqrt(x^2 + x) dx I have completed the squares and got x^2-x = (x+1/2)^2 -1/4 Now i dont know how to proceed, plz help me!
Sunday, October 5, 2014 at 3:42am

Calculus
I have y = sin^2(3^(x)) which I rewrite as y = (sin(3^(x)))^2 I got the derivative using the chain rule as the following y' = 3(sin(3^x))^2 (cos(3x)) (3^(x)(ln(3)) Can anyone confirm whether this is right/wrong? Thanks
Sunday, October 5, 2014 at 12:40am

Calculus
Find the equation of the tangent to the curve y=3x^2+4x which makes a 45 degree angle with the negative x-axis
Saturday, October 4, 2014 at 6:48pm

pre-calculus
It has been discovered in a certain state that the relationship between the number of snow shovels demanded varies linearly with its price. When the price per item was $ 38 ,2200 items were demanded; When the price was $ 49 , 2125 items were demanded. Determine the price per ...
Friday, October 3, 2014 at 9:40pm

Calculus
Find all values of x if any where the tangent line to the graph of the given equation is horizontal? y= x - sqrt (x) I am very confused would I work it like this? y = x - x^-1/2 then set x = 0? Please explain. thank you!
Thursday, October 2, 2014 at 11:45pm

pre calculus
Use Hooke's Law for springs, which states that the distance a spring is stretched (or compressed) varies directly as the force on the spring. A force of 265 newtons stretches a spring 0.15 meter. (a) What force is required to stretch the spring 0.2 meter? (Round your ...
Thursday, October 2, 2014 at 7:46pm

Calculus
True or false: a) if f(x) is continuous at a, then the limit of f(x) as x approaches a exists b) if the limit of f(x) as x approaches a exists, then f(x) is continuous at a My answer: a) false b) true
Thursday, October 2, 2014 at 7:33pm

calculus
Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. x+y=4,x=5−(y−1) 2 ;
Wednesday, October 1, 2014 at 11:38pm

Stat
Thirty randomly selected students took the calculus final. If the sample mean was 89 and the standard deviation was 6.2, construct a 99% confidence interval of the mean score of all students. Assume that the population has a normal distribution
Wednesday, October 1, 2014 at 4:46pm

Pre-Calculus/Trig...
Help Please For the function defined by: f(x)= (x^2,x≤1) (2x+1,x>1) Define f(0). and also how would i graph f(x)?
Wednesday, October 1, 2014 at 11:06am

Pre Calculus
e^-x sqrt(3e^2x -5/4) = e^x No idea how to approach this.
Wednesday, October 1, 2014 at 6:55am

Calculus
Hi. I need help with finding the derivative of the function: y= [(sec^7 x)/7] - [(sec^5 x)/5] Thanks!
Tuesday, September 30, 2014 at 9:38pm

Calculus
Hi! I need help finding the derivative of this function. f(x)= ln [(x(x-1))/(x-2)] Thank you.
Tuesday, September 30, 2014 at 9:05pm

Pre-Calculus/Trigonometry
Express the following function, F(x) as a composition of two functions and f and g. f(x)= x^2/(x^2+4)
Tuesday, September 30, 2014 at 4:29pm

Pre-Calculus/Trigonometry
For the sequence an = 4n + 5: find: the first five terms: find the sum of the first 25 terms: is it a arithmetic sequence? If so how can you tell, if not, why not?
Tuesday, September 30, 2014 at 4:20pm

Pre-Calculus/Trigonometry
Solve the following system of equations algebraically. Verify the solution by using matrices. 8x-2y=5 -12x+3y=7
Tuesday, September 30, 2014 at 1:23pm

Pre-Calculus/Trigonometry
For f(x)= 1/(x-5) and g(x)= x^2+2, find: a. (f o g)(x) b. (g o f)(6)
Tuesday, September 30, 2014 at 12:58pm

Stat
Thirty randomly selected students took the calculus final. If the sample mean was 89 and the standard deviation was 6.2, construct a 99% confidence interval of the mean score of all students. Assume that the population has a normal distribution. what formula do i use????
Tuesday, September 30, 2014 at 12:36pm

Pre-Calculus/Trigonometry
for f(x)= 1/(x^2-3), find: a. f(3) b.f(2+h)
Tuesday, September 30, 2014 at 12:01pm

Pre-Calculus/Trigonometry
Solve the following system of equations algebraically. Verify your solution by using matrices. 3x-y=0 5x+2y=22
Monday, September 29, 2014 at 7:22pm

Calculus
Solve the following e^-x (square root((3e^2x) - 5/4)) = e^x
Monday, September 29, 2014 at 6:58pm

Pre-Calculus/Trigonometry
give an example of an arithmetic sequence also give an example of a system of equations with no solutions
Monday, September 29, 2014 at 5:42pm

Pre-Calculus/Trignometry
am i right? for f(x)=2x+1 and g(x)=x^2-7 find (fog)(x. 2x^2-13 <--
Monday, September 29, 2014 at 4:24pm

Pre-Calculus/Trignometry
Give an example of a function whose domain is [2,infinity).
Monday, September 29, 2014 at 4:09pm

Calculus
r=log(cos^2(4theta)) what is the derivative of this?
Monday, September 29, 2014 at 10:24am

Calculus
What is the derivative of y=2^x?
Sunday, September 28, 2014 at 8:17pm

CALCULUS
I need to find the unit normal vector given: r(t)= ti + (6/t) j where t= 3 I know I need to find the unit tangent vector first, which is r'(t) divided by the magnitude of r'(t). r(t) can be rewritten as ti+ 6t^-1 r'(t) = i- 6t^-2 = i- [6/ (t^2)] j For the magnitude...
Sunday, September 28, 2014 at 4:21pm

Calculus Minima Problems
A small island is 2 km off shore in a large lake .A woman on the island can row her boat 10 km/hr and can run at a speed of 20 km/hr. If she rows to the closest point of the straight shore, she will land 6 km from a village on the shore. Where should she land to reach the ...
Sunday, September 28, 2014 at 12:32pm

Calculus Maxima/Minima
An automobile traveling at the rate of 30 ft/sec is approaching an intersection. When the automobile is 120 ft. from the intersection, a truck, traveling at the rate of 40 ft/sec on a road at right angles with the automobile’s road crosses the intersection. How long after...
Sunday, September 28, 2014 at 11:30am

Calculus
A small island is 2 km off shore in a large lake .A woman on the island can row her boat 10 km/hr and can run at a speed of 20 km/hr. If she rows to the closest point of the straight shore, she will land 6 km from a village on the shore. Where should she land to reach the ...
Sunday, September 28, 2014 at 11:29am

Pre-Calculus
1.) Find (f - g)(x) if f(x) = 2x - 5 and g(x) = 4. 2.) Given f(x) = 4 and g(x) = 2x - 1, find (f - g)(x). Thanks so much! :)
Sunday, September 28, 2014 at 8:35am

Calculus
Hello, my question is the following: The derivative of f(x) = ln(x) is given by f'(x) = 1/x. Find an equation of the tangent line to the graph y = ln(x) that passes through the point (0,0). So if I go through this using the typical method I use I have the point slope ...
Saturday, September 27, 2014 at 7:04pm

Calculus
2. The slope of the tangent line to the graph of the exponential function y=2^x at the point (0,1) is the limit of (2^x-1)/x as x approaches 0. Estimate the slope to three decimal places. My work: (-1,0.5) (-0.5,0.586) (-0.9,0.516) (-0.999,0.5) (0,empty) (0.0001, 0.693) (0.001...
Friday, September 26, 2014 at 7:35pm

Calculus
1. Evaluate the function at the given numbers (correct to six decimals places). Use the results to guess the value of the limit,or explain why it does not exist. F(t)=( t^(1/3) - 1)/(t^(1/2) - 1) ; t= 1.5,1.2,1.1,1.01,1.001; The limit of F(t) as t approaches 1. My work: t=1....
Friday, September 26, 2014 at 5:25pm

Pre-Calculus
Help please If f(x)=8x and g(x)=2x+1 find (fog)(x) 16x^2+8x 16x+1 16x+8 10x+1
Friday, September 26, 2014 at 5:02pm

Pre-Calculus
Help Please Solve the following system of equations. Round your answers to the nearest tenth. Your answer will be in the form: (M,N). Find M + N, rounded to the nearest tenth. 5x+2y=7 -2x+6y=9
Friday, September 26, 2014 at 11:46am

Pre-Calculus
Hello! I need help with these 2 questions: 1.) Describe how the graphs of f(x) = |2x| and g(x) = -|2x| are related. a.) All of these. b.) The graph of g(x) is a reflection of the graph of f(x) over the y-axis. c.) Non of these. d.) The graph of g(x) is a reflection of the ...
Friday, September 26, 2014 at 8:19am

Calculus
A man standing 9 feet from the base of a lamppost casts a shadow 6 feet long. If the man is 6 feet tall and walks away from the lamppost at a speed of 30 feet per minute, at what rate, in feet per minute, will his shadow lengthen?
Thursday, September 25, 2014 at 11:55pm

calculus 1
a ladder 20 ft. long rests against a vertical wall.If the bottom of a ladder slides away from the wall at a rate of 4 ft./sec, how fast is the top of the ladder sliding down the wall when the bottom of the ladder is 12 ft. from the wall? x^2 +y^2 = 20^2 x^2 + y^2 = 400 ...
Thursday, September 25, 2014 at 9:57pm

Calculus
I am so lost, I have no idea what to do next. Find the equation of the tangent line to the graph at the indicated point f(x) =x^2 +x ; a=-1 I started out using f(-1)= (-1+h)-(-1)/h but i am so lost on what to do next. I have tried to look at examples in the book, but i do not ...
Thursday, September 25, 2014 at 6:29pm

Calculus
It is known that the quantity demanded of a certain make of portable hair dryer is x hundred units/week and the corresponding wholesale price is shown below where p is in dollars. p = sqrt(225 - 5x) The supplier will make x hundred units of hair dryers available in the market ...
Thursday, September 25, 2014 at 2:09am

Calculus
The following table shows the percentage of the U.S. Discretionary Budget allocated to education in 2003, 2005, and 2009 (t=0 represents 2000) Year t 3 5 9 Percentage p(t) 6.8 7 6.2 (a) Compute and interpret the average rate of change of P(t) (b) Over the period 2003-2009 (...
Wednesday, September 24, 2014 at 8:18pm

Math-calculus
At a certain point on the beach, a post sticks out of the sand, it's top being 76 cm above the beach. The depth of the water at the post varies sinusoidally with time due to the motion of the tides. The depth d is modeled by the equation d=40+60cos(PI/2(t-2)) where t is ...
Wednesday, September 24, 2014 at 7:54pm

Calculus
At what point does the normal to y=-5-1x+3x^2 at (1, -3 ) intersect the parabola a second time? Answer: Note: You should enter a cartesian coordinate. The normal line is perpendicular to the tangent line. If two lines are perpendicular their slopes are negative reciprocals -- ...
Wednesday, September 24, 2014 at 6:20pm

Pre-Calculus
Help please Find the equation, in standard form, of the line passing through the points (2,-3) and (4,2). 5x-2y=16 y=5/2x+8 5x+2y=16 2x-3y=9
Wednesday, September 24, 2014 at 6:18pm

Pre-Calculus
Help please What is the slope of the line x = 4? would it be undefined??
Wednesday, September 24, 2014 at 5:25pm

Pre-Calculus
Help please, am i correct? The border line of the linear inequality 4x-2y < 1 is solid. True False <--
Wednesday, September 24, 2014 at 5:19pm

Pre-Calculus
help please Identify the slope and intercept of the following linear equation. y=3/7x-5 Slope: 3/7; intercept: 5 Slope: -5; intercept: 3/7 Slope: 5; intercept: 3/7 Slope: 3/7; intercept: -5
Wednesday, September 24, 2014 at 4:54pm

calculus
Z=square root of(x^2+y^2) + xy Find the partial derivatives: x, xx, y, yy, xy. Thanks.
Wednesday, September 24, 2014 at 12:07pm

Pre-Calculus
help please in what form is the following linear equation written: 3x-2y=4 Slope-intercept Point-slope Standard Rise-run
Wednesday, September 24, 2014 at 11:41am

Calculus I
Suppose that the number of bacteria in a plate of food is given by N(T)= 10T^2 - 40T + 200, -1<=T<=20 where T is the temperature of the food in degrees Celsius. Suppose that the temperature of the food when it is left out on a picnic table is given by T(t)= 4t + 10, 0<...
Wednesday, September 24, 2014 at 1:44am

calculus
Find the interval [a, b] on which the function f(x) = 2 x3+3 x2−12 x+3 is decreasing. Enter your answer as: [a, b] for some constants a, b.
Wednesday, September 24, 2014 at 1:41am

calculus
Find the derivative of (6x^2+4y^2)/(3x+7y)=3 using implicit and quotients rule. Thank you!
Tuesday, September 23, 2014 at 10:40pm

Calculus
A sinusoidal section is to be built as part of a roller coaster track. The high point is h=27 m at a horizontal distance d=0 m. It has a low point at h=-3 m at d=50 m. a. Write an equation expressing h in terms of d. b. The lengths of the horizontal timbers used to build the ...
Tuesday, September 23, 2014 at 7:42pm

Calculus
Scorpion Gulch and Western Railway are preparing to build a new line through Rolling Mountains. They have hired you to do some calculations for tunnels and bridges needed on the line. You set up a Cartesian coordinate system with its origin at the entrance to the tunnel ...
Tuesday, September 23, 2014 at 6:30pm

calculus
Suppose that the number of bacteria in a plate of food is given by N(T)= 10T^2 - 40T + 200, -1<=T<=20 where T is the temperature of the food in degrees Celsius. Suppose that the temperature of the food when it is left out on a picnic table is given by T(t)= 4t + 10, 0<...
Tuesday, September 23, 2014 at 5:48pm

calculus
Suppose that the number of bacteria in a plate of food is given by N(T)= 10T^2 - 40T + 200, -1<=T<=20 where T is the temperature of the food in degrees Celsius. Suppose that the temperature of the food when it is left out on a picnic table is given by T(t)= 4t + 10, 0<...
Tuesday, September 23, 2014 at 5:48pm

Calculus
A spacecraft is in an elliptical orbit around the earth. At the time t=0 hours, it is at its apogee (highest point), d=1000 km above the earth's surface. It is at its perigee (lowest point) d=100 km above the surface 50 minutes later. a. Assuming that d varies sinusoidally...
Tuesday, September 23, 2014 at 5:30pm

Pre-calculus/Trignometry
Which of the following is a correct equation for the line passing through the point (-1,4) and having slope m = -3? A. y-4=-3(x+1) B. y=-3x+1 C. 3x+y=1 D. y=-1/4x-3
Tuesday, September 23, 2014 at 4:23pm

Calculus I
I have to determine if this function is either odd or even or neither. f(x)=x^3*abs(x^3) + x^3 I do not know how to approach this question as the absolute value is giving me trouble. Please help. Thanks.
Tuesday, September 23, 2014 at 7:18am

College Pre-Calculus
find a function m such that m(f) is the number of miles in f feet
Tuesday, September 23, 2014 at 12:07am

Calculus
At a certain point on the beach, a post sticks out of the sand, its top being 76 cm above the beach. The depth of the water at the post varies sinusoidally with time due to the motion of the tides. The depth d is modeled by the equation d=40+60cos(pi/6(t-2)) where t is the ...
Monday, September 22, 2014 at 8:30pm

AP Calculus BC
A giant soda glass is formed by rotating the graph of f(x)= .03x^2+1.125, 0<=x<5 f(x)= -.2(x-5)^2+1.875, 5<=x<6 f(x).1(x-6)^2+1.675, 6<=x<=7 about the x axis a) If the measurements are in inches, find the capacity of the glass in cubic inches B) If 16.3787 cm...
Monday, September 22, 2014 at 7:21pm

calculus
Q: Suppose that for all xE(0,5), f(x) is between 1+x and 3+sin((pi)(x)). Find lim x->2 f(x). Is this question related to the intermediate value theorem? It is confusing me, can anyone help out? I am not certain of what xE(0,5) is defining, is that a set of x values or am I ...
Sunday, September 21, 2014 at 12:58am

pre calculus
Use a calculator to find the approximate value of sin-1( 0.635).
Saturday, September 20, 2014 at 1:45pm

Calculus
To estimate the height of a building, a stone is dropped from the top of the building into a pool of water at ground level. How high is the building if the splash is seen 6.7 seconds after the stone is dropped? Use the position function for free-falling objects given below. (...
Friday, September 19, 2014 at 8:42pm

Pre-Calculus Questions
Hi! Can someone help me with these? Thanks! 1.) Determine the slope and the y-intercept of the equation of the line passing through the points (-5, 3) and (1, -3). Write the equation of the line in slope intercept form. 2.) Determine the x- and y- intercepts and use them to ...
Friday, September 19, 2014 at 2:54pm

Pre-Calculus
Hi! I need help with these two. Here's the link for both pictures. 1.) Determine the intervals over which the function is increasing, decreasing, or constant. Write your answer in interval notation. Link for photo: file:///C:/Users/Cynthia/Downloads/Save.​PNG 2.) ...
Friday, September 19, 2014 at 7:26am

calculus
Summarize all the pertinent information obtained by applying the final version of the graphing strategy Curve-sketching techniques to f,and sketch the graph of f. f(x)=(x-1)^3(x+3)
Friday, September 19, 2014 at 1:12am

calculus
f(x)=8x^3-2x^4 and sketch a graph of f.
Friday, September 19, 2014 at 1:05am

calculus
How to find the x and y coordination of all inflection points? f(x) = x^4- 12x^2?
Friday, September 19, 2014 at 1:03am

Math (Pre-Calculus)
Can someone help me with this? Thanks! Find the zeros of the function algebraically. f(x)=x^2-8x+15 ---------------- 10x
Thursday, September 18, 2014 at 8:50pm

Pre-Calculus
1.) Which equation represents a function? A. y=-2x+1 B. x=y^2-1 C. y^2=1/3x D. None Of These E. x=4 2.) The zeros of a function f are the x-values for which f(x) = 0. True or False?
Thursday, September 18, 2014 at 8:48pm

math calculus 3
find a formula for a function g( x,y,z) whose level surfaces are planes parallel to z=3x-2y+7
Thursday, September 18, 2014 at 4:11pm

Calculus
Calculate the average rate of change of the given function f over the intervals [a, a+h] where h=1, 0.1, 0.01, 0.001, and 0.0001. I have no clue how to do this. Any help would be appreciated. Thanks I know I use the formula f=f (a+h) - f (a)/h Then do I need to plug in the -2x...
Tuesday, September 16, 2014 at 10:04pm

Pre-Calculus
Hi! I'm having trouble with this math question; can someone help? Thanks! :) Given the function f(x)=x^2+9, solve. a.) Find f(-3) b.) Find f(x-2)
Tuesday, September 16, 2014 at 8:01pm

Calculus I
Suppose we have a metal bar of length L0 metres at temperature T0 in degrees Celsius.When the bar is heated or cooled, the length of the bar changes. The amount that the length changes is proportional to the product of the temperature change and the original length of the bar ...
Tuesday, September 16, 2014 at 7:52pm

Calculus
I do not understand what this question is asking and how to get the result for it: "Suppose we have a metal bar of length L0 metres at temperature T0 in degrees Celsius.When the bar is heated or cooled, the length of the bar changes. The amount that the length changes is ...
Tuesday, September 16, 2014 at 12:05pm

Pre-Calculus/Trigonometry
Help please Which of the following is the equation of a line that passes through the points (2,5) and (4,3)? y = -x + 7 y = x + 7 y = 2x + 5 y = -2x + 5
Tuesday, September 16, 2014 at 10:43am

differential calculus
a SECURITY CAMERA is centered 50 feet above a 100-foot hallway. it is easiest to design the camera with a constant angular rate of rotation, but this results in a variable rate at which the images of the surveillance area are recorded. so, it is desirable to design a system ...
Tuesday, September 16, 2014 at 9:44am

differetial calculus-related rates
LINEAR VS ANGULAR SPEED A wheel of a radius 30 centimeters revolves at a rate of 10 revolutions per second.A dot is painted at a point P on the rim of the wheel. a)find dx/dt as a function of ϴ. b)use a graphing utility to graph a function in part (a) c)when is the ...
Tuesday, September 16, 2014 at 9:39am

differential calculus
ANGLE OF ELEVATION A balloon rises at a rate of 4 meters per second from a point on the ground 50 meters from an observer.Find the rate of change of the angle of elevation of the balloon from the observer when the balloon is 50 meters above the ground. please show all ...
Tuesday, September 16, 2014 at 7:59am

differential calculus
ADIABATIC EXPANSION when a certain polyatomic gas undergoes adiabatic expansion,its pressure p and volume V satisfy the equation pV^1.3 =k,where k is constant.Find the relationship between the related rates dp/dt and dV/dt. this is a problem of related rates please show all ...
Tuesday, September 16, 2014 at 7:54am

Calculus
find an equation of the tangent line to the graph of the function f through the point (xsub0, ysub0) not on the graph. TO find the point of tangency (x,y) on the graph of f, solve the equation ....
Tuesday, September 16, 2014 at 12:36am

Calculus-Math
The ordering and transportation cost C for components used in a manufacturing process is approximated by the function below, where C is measured in thousands of dollars and x is the order size in hundreds. C(x) = 12((1/x)+((x)/(x+3))) (a) Verify that C(2) = C(15). C(2) = 54/5 ...
Monday, September 15, 2014 at 9:49pm

pre-calculus
At a selling price of $ 54 , a lamp company breaks even on total sales of $ 3564 . If the company's overhead is $ 396 , find the marginal production cost per lamp and find the profit on sales of 145 lamps.
Monday, September 15, 2014 at 9:17pm

Pre-Calculus/Trigonometry
Am I right? Which of the following is the equation of a line that passes through the point (3,2) and is parallel to the y-axis? y = 3 x = 2 y = 2 x = 3 <---
Monday, September 15, 2014 at 5:05pm

Pre-Calculus/Trigonometry
Help please What is the slope of the line that passes through (1,0) and is parallel to y = 3x + 5?
Monday, September 15, 2014 at 4:57pm

calculus
Can you help me solve this problem? I really don't know what to do. I solve problems like for example the rate of change of the elevation but I just encountered this kind of problem so I really don't know what to do. Please help me The endpoints of a movable rod of ...
Monday, September 15, 2014 at 4:14am

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